Re: [REGRESSION] Sound goes too fast due to 798cb7e897210

From: Takashi Iwai
Date: Tue Oct 18 2011 - 04:23:25 EST


At Tue, 18 Oct 2011 10:10:14 +0200,
Ãric Piel wrote:
>
> Dear Takashi,
>
> I have a regression here on 3.1-rc9+ causing the sound "going too fast"
> with hda. Reverting 798cb7e897210 (ALSA: hda - Fix a regression of the
> position-buffer check) fixes this regression for me.
>
> Of course, as this commit is itself a regression fix, my goat feeling is
> that it's not going to be possible to directly revert it. Attached if
> the output of alsa-info.sh (on the fixed kernel). Please let me know if
> I can provide you any additional information or test any patch.

If that commit affects, the best fix would be to give a quirk specific
to your device. Try to pass either position_fix=1 or position_fix=2.
Only one of them should work (likely 2).

After checking it, you can add it to position_fix_list[] in
sound/pci/hda/hda_intel.c together with PCI SSID.


thanks,

Takashi
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